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Efficient and Stable Deep‐Red Phosphorescent Organic Light‐Emitting Diodes Based on an Iridium Complex Containing a Benzoxazole‐substituted Ancillary Ligand
Author(s) -
Wu Chuan,
Tao Silu,
Chen Mingming,
Wong FuLung,
Yuan Yi,
Mo HinWai,
Zhao Weiming,
Lee ChunSing
Publication year - 2013
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201300671
Subject(s) - iridium , phosphorescence , phosphorescent organic light emitting diode , ligand (biochemistry) , benzoxazole , dopant , photochemistry , oled , luminescence , chemistry , beryllium , materials science , doping , fluorescence , optoelectronics , organic chemistry , catalysis , physics , optics , biochemistry , receptor , layer (electronics)
In the deep red : A biscyclometalated deep‐red phosphorescent dopant containing a new ancillary ligand, iridium(III) bis(1‐phenylisoquinolinato‐ N , C 2 ′) (2‐(benzo[ d ]oxazol‐2‐yl)phenol) (Ir(piq) 2 bop) has been designed and synthesized. By doping the new complex into Bebq 2 (Bebq 2 =bis(10‐hydroxybenzo[h] quinolinato)beryllium), a saturated red‐emitting PHOLED device was obtained. At a luminescence of 100 cd m −2 , the device shows efficiencies of 10.3 cd A −1 and 9.1 Lm W −1 with CIE coordinates of (0.67, 0.33).

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